CVE-2018-20406 is an integer overflow vulnerability in Python's Modules/_pickle.c, affecting Python versions before 3.7.1. This flaw, rated 7.5 HIGH on CVSS, can lead to memory exhaustion when processing extremely large serialized data (tens to hundreds of gigabytes) via a crafted LONG_BINPUT value. While the attack vector is network-based with low complexity and no user interaction, its impact is limited to availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 3.4.0, < 3.7.1CPE matchmatch criteria | cpe:2.3:a:python:python:*:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | ||
28CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:* | ||
29CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* | ||
30CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
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Oct 29, 2024python: Integer overflow in Modules/_pickle.c allows for memory exhaustion if serializing gigabytes of data
Sep 21, 2018